日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

 
 
 

當(dāng)前位置: Language Tips> 新聞播報

Beijing-area air better than before

中國日報網(wǎng) 2014-03-03 14:04

 

Get Flash Player

Download

The pollution that hit Hebei province, Beijing and Tianjin in the past week was less severe than last year, monitoring results revealed.

From Feb 20 to 26, Beijing, Tianjin and Hebei were shrouded in smog.

However, environment-monitoring results from the Chinese Academy of Sciences showed that the average concentration of PM2.5 - fine particulate matter with a diameter less than 2.5 microns that can lodge in the lungs - was 11 percent less than it was when smog hit the region in spring 2013, and the peak concentration decreased by 16.4 percent.

"The concentration of pollutants in the smog decreased by 20 to 30 percent in general over the last year," said Wang Yuesi, a researcher from the Institute of Atmospheric Physics under the Chinese Academy of Sciences.

Wang was speaking on Saturday at a forum in Beijing held by the Chinese Academy of Sciences to discuss the cause of the smog.

The institute monitored the concentration of PM2.5 and other pollutants across the country, with 23 monitoring stations in North China. The comparison was based on data collected in January and February this year and January 2013, when severe pollution lasted nearly a month in North China.

Both of these smog events had similar climate conditions, Wang said.

"The monitoring results show that the emergency measures taken to cope with air pollution were effective. But the effect may not be so obvious to the general public because the PM2.5 concentration still caused a deterioration in visibility," he said.

Visibility in the smog was 2 kilometers, while Wang said the visibility will not be improved unless the PM2.5 concentration falls to below 100 micrograms per cubic meter. In February, it was 230 mg per cubic meter.

Beijing's contingency plan includes forcing nearby plants to cut production.

However, Wang said that only long-term solutions will end the pollution.

"The major PM2.5 source comes from coal power stations," he said. "The overall area of Beijing, Tianjin and Hebei accounts for some 0.05 percent of the world, while this region consumes 11 percent of its coal, so you don't have to use your imagination to understand why we are suffering from air pollution. We are living inside a huge chimney."

He Hong, from the Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, said: "Our research shows that 'second particles' contribute around 60 percent to the formation of PM2.5 in Beijing and Tianjin."

Second particles are pollutants generated by chemical reactions between different pollutants released into the atmosphere.

"As a result, reducing the emissions of oxynitride and oxysulfide from coal fuel and vehicles is necessary," He said.

However, due to the complex chemical reactions, scientists are not sure about the exact contributing factors of smog. To understand better, the Chinese Academy of Sciences will apply for construction in 2016 of a "smog chamber" to simulate pollution conditions.

Questions:

1. What does smog monitors in North China say about this year’s pollution?

2. Who is in charge of the monitoring?

3. What is the visibility rate in the smog?

Answers:

1. Average concentration of PM2.5 was 11 percent less than it was when smog hit the region in spring 2013.

2. The Chinese Academy of Sciences.

3. 2 kilometers.

(中國日報網(wǎng)英語點津 Helen 編輯)

Beijing-area air better than before

About the broadcaster:

Beijing-area air better than before

Nelly Min is an editor at China Daily with more than 10 years of experience as a newspaper editor and photographer. She has worked at major newspapers in the U.S., including the Los Angeles Times and the Detroit Free Press. She is also fluent in Korean.

 
中國日報網(wǎng)英語點津版權(quán)說明:凡注明來源為“中國日報網(wǎng)英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請與010-84883561聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請?zhí)峁┌鏅?quán)證明,以便盡快刪除。

中國日報網(wǎng)雙語新聞

掃描左側(cè)二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報雙語手機報

點擊左側(cè)圖標(biāo)查看訂閱方式

中國首份雙語手機報
學(xué)英語看資訊一個都不能少!

關(guān)注和訂閱

本文相關(guān)閱讀
人氣排行
搜熱詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關(guān)于我們 | 聯(lián)系方式 | 招聘信息

Copyright by chinadaily.com.cn. All rights reserved. None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited. 版權(quán)聲明:本網(wǎng)站所刊登的中國日報網(wǎng)英語點津內(nèi)容,版權(quán)屬中國日報網(wǎng)所有,未經(jīng)協(xié)議授權(quán),禁止下載使用。 歡迎愿意與本網(wǎng)站合作的單位或個人與我們聯(lián)系。

電話:8610-84883645

傳真:8610-84883500

Email: [email protected]

主站蜘蛛池模板: 午夜精品一区二区三区免费视频 | 国产精品福利资源在线 | 国产女人一区二区 | 草草免费 | 国产日韩一区二区 | 看毛片网站 | 日韩精品在线一区 | 亚洲精品国精品久久99热 | 91看片淫黄大片欧美看国产片 | 精品一区二区三区中文字幕 | 一区二区三区四区亚洲 | 超碰97av 在线人人操 | 日韩中文字幕免费在线观看 | 欧美男人天堂 | 亚洲精品成人 | 日本免费一级视频 | 在线观看的av | 亚洲国产精品无码AV久久久 | 在线观看欧美三级 | 天天草综合网 | 成人二区三区 | 99自拍视频在线观看 | 福利视频二区 | 精品一区亚洲 | 国模无水印一区二区三区 | 成人午夜毛片 | 国产精品三级国语在线看 | 亚洲A片V一区二区三区有声 | 日本高清色惰www在线视频 | 国产一区二| 午夜在线免费观看 | 天天干天天拍天天射 | 欧美成人一级 | 先锋av资源在线 | 亚洲欧美中文日韩二区一区 | 欧美激情精品久久久久久 | 成人小视频在线观看 | 欧美国产一区二区 | 婷婷视频网 | 国产成人综合95精品视频免费 | 精品久久久久久久 |